* {
  padding: 0;
  margin: 0;
}
.content {
  position: relative;
  margin: auto auto;
  width: 600px;
  height: 600px;
  border: 20px solid pink;
  background-color: black;
}
.content button {
  position: absolute;
  width: 150px;
  height: 50px;
  line-height: 50px;
  font-size: 30px;
  font-weight: 700;
  text-align: center;
  background-color: yellow;
  border-radius: 25px;
  color: tomato;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.content button:nth-of-type(2) {
  display: none;
  background-color: purple;
}
.content .head {
  position: absolute;
  left: 40px;
  top: 0;
  width: 20px;
  height: 20px;
  background: url(../img/snake.png) no-repeat;
  background-size: contain;
}
.content .body {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: pink;
}
.content .food {
  position: absolute;
  width: 20px;
  height: 20px;
  background: url(../img/food.png) no-repeat;
  background-size: contain;
}
